#include <stdio.h>
int main(void)
{
	int a = 1, b =1;
	int a_post, pre_b;
	
	a_post = a++;
	pre_b = ++b;
	printf("a a_post   b    pre_b  \n");
	printf("%ld %5d %5d %5d\n", a, a_post, b, pre_b);
	
	return 0;
}